button {
    margin-top: 10px;
    width: 96px;
    height: 36px;
    border-radius: 10px;
    border-style: none;
    color: #fff;
    background: #1261ff;
    cursor: pointer;
}

/* 遮罩层 */
.login_box {
    width: 100%;
    height: 100%;
    position: relative;
}

.Mask_box {
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, .5);
    position: fixed;
    right: 0;
    top: 0;
    z-index: 1;

}

/* 登录弹出层 */
.login_main {
    width: 800px;
    height: 560px;
    position: absolute;
    top: 50%;
    left: 50%;
    background-color: #fff;
    margin-top: -280px;
    margin-left: -400px;
    border-radius: 12px;
    display: flex;
}

/* 左侧 */
.main_left {
    width: 280px;
}

.main_left img {
    width: 100%;
    height: 560px;
    border-radius: 12px 0 0 12px;
}





/* 关闭按钮 */
.down {
    position: absolute;
    right: -32px;
    top: -32px;
    font-size: 20px;
    width: 32px;
    height: 32px;
    cursor: pointer;
    color: #fff;
    border-radius: 16px;
    text-align: center;
    line-height: 32px;
    background-color: rgba(0, 0, 0, .6);
}